This features an original design that illustrates the memory map of the Apple II High Resolution graphics mode. The pattern starts with $00 in the top left and increments as it moves right. The spot in the middle where the orange/blue colors start is where it hits $80, flipping the high bit which controls color shift. Then on the last line, it rolls back over to $00 and returns to green/violet colors. This is a plain RGB version of the display as one might see on an Apple IIgs. It has been cropped vertically, as my program doesn't use all 192 HGR lines. The name of the design refers to Woz's ingenious (albeit programmatically complex) use of memory to generate colors on NTSC displays.
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